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                            <div style="color:gray; word-break: break-all; font-size:12px;">原英文版地址: <a href="https://www.elastic.co/guide/en/elasticsearch/reference/7.7/index-modules-allocation.html" rel="nofollow" target="_blank">https://www.elastic.co/guide/en/elasticsearch/reference/7.7/index-modules-allocation.html</a>, 原文档版权归 www.elastic.co 所有<br/>本地英文版地址: <a href="../en/index-modules-allocation.html" rel="nofollow" target="_blank">../en/index-modules-allocation.html</a></div>
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<strong>重要</strong>: 此版本不会发布额外的bug修复或文档更新。最新信息请参考 <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html" rel="nofollow">当前版本文档</a>。
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<span class="breadcrumb-node">Index Shard Allocation</span>
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<a href="shard-allocation-filtering.html">Index-level shard allocation filtering »</a>
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<a id="index-modules-allocation"></a>Index Shard Allocation<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/index-modules/allocation.asciidoc">edit</a>
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<p>This module provides per-index settings to control the allocation of shards to
nodes:</p>
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<a class="xref" href="shard-allocation-filtering.html" title="Index-level shard allocation filtering">Shard allocation filtering</a>: Controlling which shards are allocated to which nodes.
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<a class="xref" href="delayed-allocation.html" title="Delaying allocation when a node leaves">Delayed allocation</a>: Delaying allocation of unassigned shards caused by a node leaving.
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<a class="xref" href="allocation-total-shards.html" title="Total shards per node">Total shards per node</a>: A hard limit on the number of shards from the same index per node.
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